1 intro

1.1 Purpose

supplementary analysis for jocn

1.2 Notes

Data/sample/preproc

  • UB55 sans DMCC52*
  • surface + fMRIprep
  • schaefer 400-07

1st-Level GLM

  • 2trpk, runwise GLMs

Target TRs:

  • Axcpt: 7, 8, 9
  • Cuedts: 9, 10
  • Stern: 11, 12
  • Stroop: 2, 3, 4

GLM contrasts:

  • Axcpt: \(\text{BY} - \text{BX}\)
  • Cuedts: \((\text{InConSwitch} + \text{InConRepeat} - \text{ConSwitch} - \text{ConRepeat})/2\)
  • Stern: \(\text{LL5RN} - \text{LL5NN}\)
  • Stroop: \((\text{PC50InCon} + \text{biasInCon} - \text{PC50Con} - \text{biasCon})/2\)

RSA

Similarity measure:

  • Similarity measure: standard linear correlation
  • NOT cross-valdiated (e.g., not cv-Euclidean/Mahalanobis)
  • NOT prewhitened
  • betas averaged across run, within task, for RSA

models:

  • focused only on between-task correlations
  • atanh transformed

2 quick look: all correlations

3 Parcel-wise stats

3.0.1 hihi

3.0.2 hihi_hilo

3.0.3 hihi_lolo

3.0.4 hilo

3.0.5 lolo

3.0.6 lolo_hilo

4 DMCC 35 versus null 35

## # A tibble: 220 x 4
## # Groups:   subj, contrast [110]
##    subj   contrast  parcelset       b
##    <chr>  <chr>     <chr>       <dbl>
##  1 102008 hihi_hilo dmcc35     0.0156
##  2 102008 hihi_hilo null34    -0.0413
##  3 102008 hihi_lolo dmcc35    -0.0336
##  4 102008 hihi_lolo null34    -0.0892
##  5 107321 hihi_hilo dmcc35     0.151 
##  6 107321 hihi_hilo null34     0.0206
##  7 107321 hihi_lolo dmcc35     0.276 
##  8 107321 hihi_lolo null34     0.0394
##  9 115825 hihi_hilo dmcc35     0.0811
## 10 115825 hihi_hilo null34     0.0610
## # ... with 210 more rows
## # A tibble: 4 x 5
## # Groups:   contrast [2]
##   contrast  parcelset        p statistic      b
##   <chr>     <chr>        <dbl>     <dbl>  <dbl>
## 1 hihi_hilo dmcc35    5.78e-12      8.77 0.0751
## 2 hihi_hilo null34    1.93e- 5      4.69 0.0136
## 3 hihi_lolo dmcc35    7.23e-12      8.71 0.119 
## 4 hihi_lolo null34    5.88e- 5      4.36 0.0217
## # A tibble: 2 x 4
##   contrast         p statistic      b
## * <chr>        <dbl>     <dbl>  <dbl>
## 1 hihi_hilo 1.17e-10      7.96 0.0615
## 2 hihi_lolo 1.69e-10      7.85 0.0971

5 univariate effects